Supported by Key Program of National Natural Science Foundation of China(Grant No.51235009);National Natural Science Foundation of China(Grant No.51605374).
The distinguishing feature of a vertical ball screw feed system without counterweight is that the spindle system weight directly acts on the kinematic joints.Research into the dynamic characteristics under acceleratio...
This work was supported by the key project of the National Natural Science Foundation of China (51235009).
The ball-screw feed drive has varying high-order dynamic characteristics due to flexibilities of the slender screw spindle and joints between components, and an obvious feature of non-collocated control when a direct ...